Function dmtcp_initialize_entry_point

src/dmtcpworker.cpp:219–280

// Initialize remaining components.
extern "C" void __attribute__((constructor(101)))
dmtcp_initialize_entry_point()
{
  if (dmtcp_initialized) {
    return;
  }

  dmtcp_initialized = true;

  dmtcp_initialize();

  initializeJalib();
  dmtcp_prepare_atfork();

  WorkerState::setCurrentState(WorkerState::RUNNING);

  PluginManager::initialize();

  prepareLogAndProcessdDataFromSerialFile();

  JTRACE("libdmtcp.so:  Running ")
    (jalib::Filesystem::GetProgramName()) (getenv("LD_PRELOAD"));

  if (getenv("DMTCP_SEGFAULT_HANDLER") != NULL) {
    // Install a segmentation fault handler (for debugging).
    installSegFaultHandler();
  }

  // This is called for side effect only.  Force this function to call
  // getenv(ENV_VAR_SIGCKPT) now and cache it to avoid getenv calls later.
  DmtcpWorker::determineCkptSignal();

  // Also cache programName and arguments
  string programName = jalib::Filesystem::GetProgramName();

  JASSERT(programName != "dmtcp_coordinator" &&
          programName != "dmtcp_launch" &&
          programName != "dmtcp_nocheckpoint" &&
          programName != "dmtcp_comand" &&
          programName != "dmtcp_restart" &&
          programName != "mtcp_restart" &&
          programName != "rsh" &&
          programName != "ssh")
    (programName).Text("This program should not be run under ckpt control");

  restoreUserLDPRELOAD();

  // Initialize data-structures related to motherofall thread.
  ThreadSync::initMotherOfAll();
  ThreadList::init();

  // In libdmtcp.so, notify this event for each plugin.
  PluginManager::eventHook(DMTCP_EVENT_INIT, NULL);

  // Initialize the timezone.
  // tzset() requires a malloc during initialization. We want to do it here to
  // avoid a later malloc during gmtime_r/localtime_r.
  tzset();